Qterror---XXXhasnotbeendeclared Qterror---XXXhasnotbeendeclared 1、头⽂件没加 2、调⽤函数者的头⽂件在XXX头⽂件的下⽅
1、头文件没加 2、调用函数者的头文件在XXX头文件的下方
1、头文件没加 2、调用函数者的头文件在XXX头文件的下方
1.晚上使用 VScode 写代码,编译时出现如下报错信息 "error: ‘ostream’ has not been declared".编译无法通过. error: ‘ostream’ has not been declared//ostream 未声明 2.产生上述报错时,源文件中包含了头文件 iostream.笔者第一反应,是和 C 语言下出现类似报错时一样,认为可能没有包含对应声明了 ostream ...
你没有拉入"stdio.h" 或拉入头文件的顺序不正确。或你用的是unicode 版本。如果你用的是VS8以后的版本的话，选中memcpy,按下F12会出现memcpy所在的库文件这样你就知道拉入什么头文件了
error: ‘rclcpp::executor’ has not been declared思考与ROS2的版本号,这个其实是各版本之间不停的改动导致的。foxy:Thatmeansreplacethew
src/caffe/common.cpp src/caffe/common.cpp: In function ‘void caffe::GlobalInit(int*, char***)’: src/caffe/common.cpp:35:5: error: ‘::gflags’ has not been declared ::gflags::ParseCommandLineFlags(pargc, pargv, true); ^ make: *** [.build_release/src/caffe/common.o] Error ...
2019-12-05 14:14 −JobStorage.Current property value has not been initialized. You must set it before using Hangfire Client or Server API. 要设置 hangfire 的存储数据库。Glo... runliuv 0 2380 java.lang.IllegalStateException: Cannot call sendError() after the response has been committe ...
keil编译发生错误#include <stdio.h>#include <stdlib.h>... // 标头档#define Result_TIMOUT 3#define Result_INTIAL 0#define Result_ERROR 1... // 预处理typedef enum{ MD_INIT, HARDWARE_CHECK, F.。
33: error: ‘uint8_t’ has not been declared static QString toString(uint8_t* cUserId/*, uint16_t cUserIdSize*/); ^ ../src/core.hpp:57:9: error: ‘uint8_t’ does not name a type uint8_t* cUserId; ^ ../src/core.hpp:58:9: error: ‘uint16_t’ does not name a ty...